In a chemistry laboratory, there are two varieties of some acid. Variety A costs Rs.80 per litre, while variety B costs Rs.100 per litre. In what proportion must a scientist mix both the varieties A and B, so that the mixture becomes worth Rs.92 per litre?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 2 : 3.
Given:
Variety A costs = 80 Rs/liter
Variety B costs = 100 Rs/liter
The mixture costs = 92 Rs/liter
Explanation:
By using the allegation method
Hence, the mixture ratio is 2 : 3